pyramid madness (HELP)

I need help into making this level, it was hard to make it exactly what your image could see.
and the pyramid you make doesn’t come out right. a metal steal structure with a portal entrance inside of it.
and needed an ideas for a map, I mean my ideas was to make a ruins level as a (gravity defying maze)
like if you find a portal you click on it, and soon you will find a world up-sidedown.
I need that puzzle. and switches, because I need hints and puzzles. please?:o

(MAKING A MYST INSPIRED GAME)

Attachments



Reg. pyramid + knife project:
http://i.imgur.com/CzWL2Tz.png